Stop-cock.



H. P. F. HEDGER. STO P 000K.

APPLICATION FILED MAY 18, 1910.

. 1, %8 %59, Patented June 4, 1912.

. Units-n snares HA-BOLD P. F. HEDGER, E WASECA, SASKATCHEWrEN, CANADA.

- Application filed its is,

Specification of Letters Patent.

P atcntodvlnnc 4c, 1%)12. ism. Serial No. seam l.

To all wh0m it may concern.

Be t known that I, HAROLD P. F. Bunsen, a sulnect of the King of Great Britain, re-

siding at Waseca, in the Province of Sasketchewan, Dominion of Canada, have invented certain new and useful Improve.

.ments in Stop-Co'cks; and I do hereby deolare the following to be a full, clear, and exact description of the invention, such as will enable others skilled,in the art to which it appertains to make and use the same:

The invention relates to stop cocks and more particularly to the class 'Of velves for stop cocks. i

The primary object of the invention is the provision of a. stop cock in which the turning plug thereot'is provided with a drain passage so that water may be drained from the plug core thus preventing the bursting thereof should the contents of the pipe become frozen during cold weather. Another object of the invention is' t-he provision of a stop cock in which the Water ;passage through the turning plug thereof is lined or coated with an inoxidizable substanceto prevent injury to the cock by saline or other injurious solutions passing? throu h the cock.

A urther-object of the invention is the provision of a stopcock in which the turning plug thereof is provided with a passageway the same being disposed slightly to one side ofits axis of rotation so that the plug when in closed position will resent a thickened Wall toward the bore oi the pipe at the pressure side thereof or in other words what might be termed the cut off side of the pipe thus strengthening the plug against the ice ressure in the cut oll pipe. I

A still further object of the invention is the provision of a. stop cock which is simple in construction, thoroughly reliable, practicel and eificient in operation, and. one that may be manufactured at a minimum expense.

' With these and other objects in view the invention consists in the construction, combinstion and arrangement of parts as will he hereinafter more fully described, illusclosing thepreferre form of embodiment of the invention and pointed. out in the claim hereunto appended.

In the drawings :--Fi ure 1 .is ,e vertical longitudinal sectional view through a stop trated in the accom anying drawings dis-.

'cock constructed in accordance with the invention. Fig. 2 is a top plan view. Fig. '3 is a horizontal transversesectional view therethrough. Fig. 4 is a detail perspective Wiew of the rotary or turning plug of the gtop cook the same being removed thererom. I

responding parts throughout the' several views in the drawings.

Referring to the-drawings by numerals 5 screw threaded pressure pipe 11 while the screw threaded discharge pipe 12. these wipes-being of corresponding diameter with similar bores of'a'size corresponding to the bore 8 in the casing of the stop cook. The passage 7 in the plug 6 is disposed slightly to'one sideof the axis of rotation of the said plug 6 so as to present a thickened Wall 13 which closes the bore of the pressure pipe mal closed position. The inner surface of this passage 7 is covered with an inoxidizahie lining or filling 14 preferably consisting of a, mixture of lead and. tin substance so that injurious solutions passing throl'lgh the passage 7 will be resisted by said lining or filling 14 and thereby increase the life of the plug because the said lining or filling will protect the plug from said solutions.

At a medial sage 7 opposite t e thickened Well 13' of the said plug is provided at right angles to the said passage a'drain slot or passage 15 the same communicating, with the said passage 7 end coextensive with its length so that on closing the plug the drain passage 15 will establish communication between the possage 'Z and the discharge pipe 12- therehy permitting the accumulated water w1tlun the passage to be drained therefrom lnto the discharge pipe so as to obviate the posbeing adapted to engage with a, length of end portion 10'is engaged with a length of a- 11 when the plug has been turned to nor oint relative to the pasii m Similar reference characters indicate cor 4 designates generally the casing of the stop sible bursting of the stop cock due to frost or ice formation within the discharge pipe 12 in cold weather.

In the top face of the turning plug 6 atthe required point is formed'an indicator mark 16 the latter serving to indicate at the proper time when the "plug has been-turned to close the stop cock. This indicator mark 16 when the plug has been turned to closed position is adapted to register with an indicator mark 17 provided in the top face of the casing 5 whereupon it will be determined that the said tion. Also provided in the top face of the plug is a further indicator mark 18 the same being adapted to be on the turning of the plug brmight into aliuement with the indicator mark 17 thereby determining that the plug is in opened position by having its passage 7 a'line or register with the bores of the pipes 11 and 12 thus establishing communication therebetween.

What is claimed is Ina stop cock, the combination with a plug 6 is in closed posi-w casing having a bore therethrough; of acenter and greater in height than the diam-,

eter of the bore, a one-piece rectangular inoxidizable lining fitted in said; passage and having a slot extending vertically therethrongh of an=extent.equal to the diameter of the bore and communicating with asimilarly disposed drain slot in the narrow side of the plug at-right anglesto the passage and coextensive with thelongitudinal center thereof, the inner faces of the top and bottom portions of the lining being flush with the upper and lower exposed 'walls of the slot. i

In testimony whereof, I afiix my .signa ture, in presence oftwo witnesses.

HAROLD P. F. HEDGERQ Witnesses: I v

M. E. DoNovAN, L. Arornson. 

